TPS631000DRLR

TPS631000DRLR is the tape-and-reel SOT-583 (DRL) ordering code for the Texas Instruments TPS631000 buck-boost converter, listed by TI as ACTIVE. The 1000 in the name is the base device number, not a current-grade code: the device itself is defined by a 3 A typical peak switch current, delivering 2 A of output at a 3.3 V output with the input at or above 3 V, and 1.5 A with the input at or above 2.7 V. It accepts a 1.6 V to 5.5 V input (start-up needs the input above 1.65 V), regulates an adjustable 1.2 V to 5.3 V output, draws 8 µA typical quiescent current and switches at a fixed 2 MHz. The selection point is a rail that survives the battery crossover in the smallest footprint: single-cell products whose 3.3 V rail sits inside the discharge curve get buck-boost regulation in a 1.2 mm by 2.1 mm package. Selection advice: budget load current from the input-dependent figures above - the 2 A headline only holds with the input at 3 V or higher - and note that the WCSP family members TPS631010 and TPS631011 are different packages that do not fit this land pattern. Parameters verified against the TI TPS631000 datasheet SLVSFH3C and the TI ordering page for this code.